MPCBL5524A1D Intel, MPCBL5524A1D Datasheet - Page 41

• Manufacturer Part Number: MPCBL5524A1D
• Manufacturer: Intel

Specifications of MPCBL5524A1D

• Lead Free Status / Rohs Status: Supplier Unconfirmed

4.2.6
4.2.7
4.2.8
Intel NetStructure
Table 6.
Table 7.
Table 8.
Note: The BIOS Recovery Module Override Bit (Port 78h, bit 7) must be set to 0 for this switch to be
SW3-4 Settings
SW4-1 (Flash Write Protect/Write Enable)
Closing this switch write-protects the BIOS portion of the flash memory. Open SW4-1 when
installing an operating system image (such as VxWorks) into flash or when using the FLASH.EXE
utility to recover from a corrupted BIOS (see
this switch can be read back at the Flash Write-Protect Status bit of the Switch Monitor register
(Port E3h, bit 7). Factory default is open. For more information on this bit, see
page
The Flash Write Enable
to write to flash (see
SW4-1 Settings
SW4-2 (Boot Source)
Open this switch to boot from flash (normal operation). Close this switch to recover from a
corrupted BIOS. This allows the ZT 5524 / MPCBL5524 to boot from the BIOS Recovery Module.
See
The status of this switch can be read back at the Boot Source Monitoring bit of the Switch Monitors
register (Port E3h, bit 6). Factory default is open. For more information on this bit, see
page
operational.
SW4-2 Settings
SW4-3 (Reserved)
The function of this switch is reserved and should not be altered from its factory default setting
(open).
SW3-4
Open
Closed (Default)
SW4-1
Open (Default)
Closed
SW4-2
Open (Default)
Closed
®
Chapter 7, “BIOS Recovery”
ZT 5524 / MPCBL5524 High-Performance System Master Processor Board TPS
77.
77.
Function
BIOS read/write
BIOS read only
Function
Boot from Flash
Boot from BIOS Recovery Module
Function
Onboard IDE Master
Onboard IDE Slave
Table 34 on page
bit
of the Flash Control register (Port 78h, bit 1) must also be properly set
for more information.
73). Factory default is open.
“Flash Utility Program” on page
53). The status of
Table 39 on
Configuration
Table 39 on
41